Loose-leaf binder.



J; SCHADE. LOOSE LEAF BINDER.

APPLICATION FILED JAN. 17. I917- Patented Jan. 15,1918.

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Unitarian surname JOHN SCHADE, OF HOLYOKE, MASSACHUSETTS, ASSIGNOB, T NATIONAL BLANK BOOK.

COMPANY, OF I-IOLYOKE, MASSACHUSETTS, A VGLUNTARY ASEiOCIATION 0F COPART- NERSHIP HAVING AS TRUSTEES J. "W. TOVTNE, '23. B. TOWNE, E. S. TOWNE, 3. M.

TO'WNE, AND F. W. WILSON.

LOOSE-LEAF BINDER Specification of Letters Patent.

Patented J an. 15, 191%..

To all whom it may concern:

Be it known that 1, JOHN Sermon, a citizen of the United States, residing at the city of Holyoke, county of Hampden, State of Massachusetts, have invented certain new and useful Improvements in Loose-Leaf Binders; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in a loose leaf binder and especially to a particular form of booster and the manner of mounting the same.

The principal object is to provide a loose leaf binder in which the booster, for operating the prong-carrying bars, is assembled in a simple, facile and durable manner for rocking action and without the incorporation or aid of additional and complicated parts.

Further, the invention resides in the features of construction, and the arrangements and combinations of parts hereinafter described and claimed, the preferred embodiment being illustrated in the accompanying drawing wherein Figure 1 is a top plan new of a loose leaf binder embodying the present invention;

Fig. 2 is a fragmentary bottom plan view showing one of the boosters assembled in an end cap;

Fig. 3 is an end elevation of the binder; and

Fig. 4C is a perspective of the booster per 86.

Referring more in detail to the drawing, the numeral 1 designates the top or cover plate beneath which the prong-carry ng members 2 are arranged for rocking action in the end caps 3, the prongs 4 of the carrying members overhanging the cover plate in interlocking relation when closed. The prong-carrying members have opposing edge recesses 5 which provide an opening adjacent each end for the reception of a ball 6 that is yieldingly urged against the meeting edges of the carrying members by a resilient tongue 7 of the respective end caps 3. These resilient tongues serve to house and retain the balls in their openings as well as cooperate therewith in providing a yieldable lock for holding the carrying members either in opened or closed position. The end caps have their side edges 8 clenched under the prong-carrying members and cooperate with the tongues 7 in providing support therefor.

The end walls 9 of the end caps each have a transversely curved slot 10 in which the specially formed boosters 11 are mounted for free rocking.

Each booster comprises a vertical body portion 12 having its upper end outturned to provide a handle or thumb hold 13 and its lower end forked and inturned for projection through the slot 10 of the end cap. The slot l i, that divides the forked inturned end into two legs or elements 15, extends partially through the body portion to afford greater resiliency and springing action of said elements. This is essential since in the assembling of the boosters the elements 15 are sprung together by forcing the same against the walls of the cap slots 10, as shown in the dotted line position at 16, until the seats 17 are brought opposite the ends of the slots, when the elements will spread by their resiliency to interlock said seats with said walls 9. These seats are notched in the outer side edges of the spring elements 15 adjacent the point where they join the body portion 12 and when interlocked with the end walls of the end caps provide a means for securely locking the boosters in operative position and at the same time permit them to pivot or rock freely for the purpose of operating the pron g-carrying members.

The booster elements 15 are housed between the tongues 7 and the terminal portions 18 of the prong-carrying members, and when the thumb holds 13 are depressed, the boosters are rocked and the elements 15 swung upwardly carrying the terminal portions 18 with them to open the prongs 4.

It will therefore be noticed that by assembling the boosters in the manner herein- 35 prong carrying members and having side before described not a single extra part is required as an aid, the Whole can be assembled in a simple and facile operation and the parts are fully protected and durably designed.

What is claimed is:

1. In a loose leaf binder, a pair of prong carrying members, end caps supporting the members for rocking, the end Walls of the caps having slots, and the meeting edges of the members having opposed recesses forming openings adjacent their ends, a ball in each opening, a spring tongue carried by each cap and underlying the adjacent ball to urge the same yieldably against the prong-carrying members, and a booster pivotally disposed in each cap slot and comprising a body portion having a resilient forked portion with inturned ends extending throughthe cap slot and provided With side edge seats interlocking with the end Walls of said slot, the ends of said fork end being housed between the prong-carrying members and the spring tongue.

2. In a loose leaf binder, a pair of prongcarrying members, end caps supporting the members for rocking, the end Walls of the caps having slots, means yieldably holding the prong-carrying members in their opened and closed positions, and a booster pivotally arranged in each cap slotand comprising a body portion having an upper outturned handle part and a lower inturned resilient forked part the elements of Which project through the cap slots to operate against the edge seats that are sprung into interlocking relation with the walls of the cap slot.

3. In a loose leaf binder, rockable prongcarrying members, means supporting the same and provided with end slots, and boosters at the ends of said members and having forked resilient ends extending through the end slots, the elements of said forked ends having side seats interlockingly engaged with the Walls of the respective end slots.

4. In a loose leaf binder, rockable prongcarrying members, means supporting the same and provided with end slots, and boosters having resilient spaced elements adapted to be forced together for insertion in the end slots to resiliently interlock with the Walls of said slots.

5. In a loose leaf binder, rockable prongcarrying members, means supporting the same and provided with end slots, and a booster having integral spaced resilient elements adapted to be forced together for insertion in an end slot beneath said members, the outer side edges of said resilient elements having seats to interlock With the Walls of the end slot When said elements are finally positioned,

6, In a loose leaf binder, rockable prong carrying members, supports therefor, and boosters comprising integral spaced resilient elements sprung into interlocking and pivotal relation With the supports and beneath said members.

7. In a loose leaf binder, rockable prong carrying members, supports therefor having end openings, and boosters disposed in said openings and having laterally yieldable parts that are interlockin'gly and pivotally engaged with the Walls of said openings and immediately beneath said prong carrying members.

In testimony whereof I affix my signature in presence of tWo Witnesses.

' JOHIX SCHADE. Witnesses I'IOMER GENDRON, FREDERICK WV. Wnrssnnon.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

